Add 84/70 and 98/80, Solve 1 14/70 + 1 18/80 as a fraction

Add 84/70 and 98/80

1^st number: 1 14/70, 2^nd number: 1 18/80

84/70 + 98/80 is 97/40.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 80 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 70 × 8 = 560,
84/70 = 84 × 8/70 × 8 = 672/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
98/80 = 98 × 7/80 × 7 = 686/560
Add the two like fractions:
672/560 + 686/560 = 672 + 686/560 = 1358/560
1358/560 simplified gives 97/40
So, 84/70 + 98/80 = 97/40
In mixed form: 217/40

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